Grain-scourer



(No Model.)

A. HEINE.

GRAIN SOOUBER. No. 397,720; Patented Feb. 12, 1889.

N. PETERSv Photo-,Ulhographer. Washmghzn. D. C.

lhnTTnn @TaTns PATENT Trice AUGUST HEINE, OF SILVER CREEK, NET V YORK.

GRAlN- SCOURER.

SPECIFICATION forming part of Letters Patent No. 397,720, dated February 12,1889.

Application filed November 22, 1887 Serial No. 255,884. (No model.)

To all whom it may concern.-

Be it known that I, AUGUST HEINE, of Silver Creek, in the county of Chautauqua and State of New York, have invented new and useful Improvements in Grain-Scourers, of which the following is a specification.

This invention relates to that class of grainscouring machines in which. the kernels are freed from adhering impurities by the attrition of the kernels against each other and again st metallic scouring-surfaces, and which are provided with an air-separator, whereby the impurities dislodged from the grain are discharged from. the machine.

The object of my invention is to produce a machine of this character which has a large scouring-surface in a compact form, in which the grain is thoroughly cleaned without subjecting the same to a harsh and violent action, and in which the dislodged impurities are quickly removed from the grain.

My invention consists of the improvements which will be hereinafter fully set forth, and pointed outin the claims.

In the accompanying drawings, Figure 1 is a longitudinal section of my improved grain scourer. Fig. 2 is a cross-section of the upper portion of the machine in line :r, Fig. 1. Fig. 3 is a fragmentary perspective view of the scouring-cylinders and elevating mechan- I ism. Fig. i is a fragmentary cross-section showing a slightlyanodilietl construction of the elevating mechanism.

Like letters of reference refer to like parts in thescvcral figures.

A represents theframe of the machine, and a the inclosing casing secured thereto.

6 represents the horizontal driving-shaft, journaled in bearin 1) U secured to the frame A.

19 represents the driving-pulley secured to one end of the shaftl).

C represents the perforated scouring-cylinder, secured at its end to flanged heads D D, arranged, respectively, at the feed and tail ends of the cylinder. The head Dat the feed end of the cylinder is provided with a central feedtube, d.

d represents arms, which connect the head D with a hub, (1 secured to the shaft 1).

The head D at the tail end of thecylinder vC" is provided with elevating-ribs e, .a deflecting hub or cone, 6', and a central dischargetube, 6 in a well-known manner.

F represents a perforated drum arranged within the cylinder C and of smaller diameter than the latter, so as to leave an annular space, f, between the cylinder C and the drum F. The latter is preferably composed of a series of bent or curved perforated plates, f',which are secured at one end to corresponding ribs or flanges, f formed on the head D, and at their opposite ends toa corrugated ring, f secured. to the elevating-ribs e of the tail-head D. The perforated sectionsf are slightly separated or set apart, so as to leave longitudinal openings or slots gbetween the adjacent edges thereof.

I'I represents perforated elevating-buckets arranged in the space f opposite each section f, or nearly so, between the cylinder 0 and drum F, and secured at one end to flanges h of the head D and at their oppositeends to flanged arms 71, formed on the ring f of the tail-head D. The plates f of the inner drum,

1 F, are arranged with their concave sides outwardly facing the elevating-buckets, and the latter are preferably composed each of two straight perforated plates secured together in V shape, as represented in Fig. 2.

I represents a vertical suction-spout arranged at the feed end of the machine and connected at its lower end with a ring, 2 which projects into the feed-tube d of the head D.

i represents the feed-spout, which dis= .charges the grain into the suction-spout I.

11 represent gates or valves arranged, respectively, in the air-spouts K and J, whereby the air-currents on opposite ends of the scouring cylinder can be regulated, and Z 5 represents a regulating-valve arranged near the lower open end of the suction-spout .I.

m represents air-inlet openings formed between slats m, which are secured to the upper portion of the frame A and form part of 1c the inclosing-easiug a.

N represents the trough-shaped lower portion of the casing (1, arranged below the scouring-cylinder G, and n represents a screw-conveyer arranged in the lower portion of the casing. This conveyer is driven from the main shaft 1) by a drive-chain, a, and the fan is driven from the conveyer-shatt by an end less belt, 02?. The grain to be secured is fed by the feed-spoutz" into the air-spout Lwhere it meets the air-current, whereby the light impurities-such as dust, chaff, &c.are carried upward toward the fan and discharged, while the grain and'heavier particles descend through the air-current and are delivered into the interior of the drum F tl'irough the feedtube (1. The convex upper sides of the lower plates, f of the drum and the rotary movement of the drum cause the grain to slide over these plates and fall through the spaces g between thelower plates into the lower portion of the outer cylinder, (l.

The grain is fed into the machine in such quantities that the spaeef between the lower portions of the cylinder 0 and drum F is 3 5 kept well filled, so as to cause the elevatingbuckets to take up a portion of the grain and distribute the same constantly over a large portion of the ascendingside of the securingcylinder. The grain which lies between the 40 buckets and the ascending sides of the scouring-cylinder and drum moves back by gravity and is scoured, while the grain contained in the buckets is carried upwardly and distributed over the outer concave sides of the upper scouring-sections of the inner drum and is partly carried over and discharged on the descending sides of the cylinder and drum in athin spray. The d eseending grain 'is scoured by rubbing against the descending buckets,

which latter also serve to deflect the grain toward the descendingsides of the cylinder and drum. The seeds-such as cockle, &c.and small or broken grain pass th rough the pe rforations of the seouring-eylinder and fall into the trough I, while the larger scoured grains are discharged into the air-trunk J by the discharge devices attached to the tail-head D.

The scoured grain which is discharged into the air-trunk J is again subjected to the action of an air-(airrent, whereby any remaining impurities are separated and removed therefrom. The suction created, by the fan causes the exterior air to enter the casing a through the openings at between the slats m. This 6 5 air passes into the scour-in g-cylin der 0 through the perforations thereof. Part of the air which has entered the scouring cylinder moves toward the tail end of the same and passes into the suction-spout J through the discharge-tube c while the rest of this air passes tl'n-ough the perforations and slots of the inner drum, l and into the suction-spout I through the feed-tube (I. These air-currents are distributed over the entire length of the scouring mechanism and remove the impurities as soon as they are dislodged from the grain, whereby the fine impurities are prevented from being smeared over the kernels and the perforations of the scouring-surfaces are kept open.

My improved machine can be run at a very slow speed and with little power, as the continued elevating and agitating of the grain on one side of the cylinders and the descending of the grain on the opposite side thereof distributethe same over the greater portion of the scouring-surface in thin layers and al low the air-currents to pass freely through the same in all parts of the scouring mechanism.

In the modified construction represented in Fig. a perforated elevating wings or plates are substituted for the buckets.

\Vhen the grain is subjected to the action of a smut-machine before it is fed to my improved grain-scourer, the air-trunk may be omitted, and the grain may be spouted directly in to the feed en d of the scouring-cylinder without being first subjected to a preliminary air separation.

I claim as my invention-- 1. In. a grain-scourer, the combination, with the rotating perforated seouring-cylinder, of an internal perforated scouring-drum secured to said cylinder so as to rotate therewith, and provided with longitudinal openings extending the length of the drum, apd elevators arranged in the space between the drum and the cylinder, substantially as set forth.

2. In a grain-scourer, the combination, with the rotating perforated scouring-cylinder, of an internal scouring-drum composed of perforated plates secured to opposite ends of said cylinder and separated by longitut'linal openings, and perforated elevating-buckets arranged in the space between the drum and the cylinder, substantially as set forth.

5 'In a grain-seourer, the combination,with the rotating perforated scouring-cylinder, of a perforated scouring-drum secured within the cylinder and rotating in the same direction and with the same speed as the cylinder,

elevators arranged between the cylinder and.

the drum, and a suction-fan having its eye connected with the end of the scouring-cylinder,\vhereby the air is drawn inwardly through the perforations of the soonring-cylinder and through the space between said cylinder and the inner scouring-drum to the fan, substantially as set forth.

4. The combination, with the inclosing-easneeting the fan with both ends of the scouring provided with air-inlets, of a perforated rotating scouring-cylinder arranged in said casing, a perforated scouring-drum arranged within said cylinder and rotating in the same direction and at the same speed as the cylinder, elevators arranged between the cylinder I and drum, :1 suction-fan, and air-spouts c011 ing-oylinder, substantially as set forth. IO

lVitness my hand this 15th day'of November, 1887.

AITG'UST IIEINE. \Vit-nesses:

FRED. C. GEYER, CHESTER D. HOWE. 

